"It was the most brutal, brutal thing I ever felt in my life," he said. "I had 103.5 fever, I couldn’t move, I couldn’t do anything, I couldn't pick up my phone."

But the 61-year-old is used to fighting. He was diagnosed with stage-4 prostate cancer five years ago and underwent 65 sessions of radiation. He started feeling sick soon after a round of chemo and thought for sure it was from that. Then he realized it was something different.

"It was the worst feeling in the world. I got up from my bed, walked ten feet and I had to sit on the floor,” Barnett said.